docs: def show_in_menus_custom(self, request=None, current_site=None,
                               menu_instance=None, original_menu_tag=''):
          """
          Return a boolean indicating whether this page should be included in
          menus being rendered.
          """
          if not self.show_in_menus:
              return False
          if self.link_page:
              return self.link_page_is_suitable_for_display()
          return True